Artur K. focused on stabilizing the map user interface for the WSB-CW8/Co-Development-Task repository by addressing a persistent issue with map marker icon rendering. He resolved the problem by importing and configuring a default Leaflet marker icon, explicitly setting the icon size and anchor to ensure consistent display across devices and browsers. Working primarily with JavaScript and TypeScript, Artur improved the reliability and usability of map interactions, reducing user confusion related to missing or incorrect markers. His targeted bug fix contributed to the maintainability and consistency of the codebase, demonstrating depth in front end development and map integration using Leaflet.